The current study was carried out with a view to investigate the influence of a number of metallurgical parameters on the tensile properties and quality indices of two high strength Al-9%Si casting alloys, namely 354 and 359, containing 1.8% Cu-0.5%Mg and 0.5%Mg, respectively. For the purposes of validating their use in industrial applications, a solid database was created, based on the present study, to correlate the tensile properties and the quality indices of these alloys with the most common metallurgical parameters controlling the properties. The variables investigated include iron level; copper content; solution heat treatment conditions; and aging temperatures and times. Quality charts were used as an evaluation tool for selecting the optimum conditions to be applied in practice in order to develop high strength and optimum quality in 354- and 359-type castings.

目前的研究旨在调查一些冶金参数对两种高强度 Al-9%Si 铸造合金（即 354 和 359，含 1.8% Cu-0.5%）的拉伸性能和质量指数的影响分别为 Mg 和 0.5% Mg。为了验证它们在工业应用中的使用，基于本研究创建了一个实体数据库，以将这些合金的拉伸性能和质量指数与控制性能的最常见冶金参数相关联。调查的变量包括铁水平；铜含量；固溶热处理条件；以及老化温度和时间。